Dumb-bell



Feb. 1925- 1,524,888

J. P. scHuuR DUMB BELL Filed July 15, 1922 INVENTOR. Jo/m P Jc/ww" Imgim m M? ATTORNEYS Patented Feb. 3, 1925.

UNITED TEN JOHN P. SOHUUR, OLE KALAIVIAZOO, MICHIGAN.

' DUMB-BELL.

Application filed July 13,

T 0 all whom it may concern Be it known that I, JOHN P. SoHUUn, acitizen of the United States, residing at the city and county ofKalamazoo, State of Michigan, have invented certain new and usefulImprovements in Dumb-Bells, of which the following is a specification.

This invention relates to improvements in dumb bells.

The main object of this invention is to provide an improveddumb bell,the weight of which may be very considerably varied and one which at thesame time is neat and attractive in appearance.

Further objects, and objects relating to structural details, willdefinitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing, forming a part of thisapplication, in which:

Fig. I is a side View of a dumb bell embodying the features of myinvention.

Fig. II is an enlarged detail partially in longitudinal section on aline corresponding to line 2-2 of Figs. I, III and IV.

Fig. III is a transverse section on a line corresponding to line 3-3 ofFigs. I and II.

Fig. IV is an end view of one of the easing members.

In the drawing similar reference characters refer to similar partsthroughout the several views and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the hand bar portion 1 in the structureillustrated is a bar of uniform dimensions although this may be shapedup as desired. The hand bar is provided with a shank portion 2 ofnon-circular cross section and having a collar 3 at its inner end.

I provide a' spherical casing, the hemispherical sections 4: and 5 beingprovided with rabbeted edges forming an interlapping joint, designatedgenerally by the numeral 6. The inner section 4 has an exterior recess 7adapted to receive the collar 8. The outer section 5 has a recess 8adapted to receive the clamping nut 9 threaded upon the end of thespindl 2. These casing sections are pro- 1922. Serial No. 574,602.

vided with inwardly projecting annularly disposed lugs 10. e

I provide a plurality of disk-likeweights 11 each having groove-likerecesses 12 in the periphery thereof adapted to receive the lugs of thecasing members so that the parts may be engaged with a relative rotativemovement. These disks 11 are preferably of varying thickness, therebysecuring a greater variation in the weight of the dumb bell as one ormore of these disks are removed. The disks have non-circular centralholes 13 in the non-circular cross section, so that when the weights aremounted thereon they ar supported against'rotation.

In assembling the inner casing sectionis placed upon the handpiece, theweighting disk may be inserted and the parts relatively rotated, therebybringing the lugs into engaging relation with the weights and the partsproperly assembled may he slipped upon the non-circular portion of theshank and clamped thereto.

I have illustrated and described my improvements in an embodiment whichI consider very practical. I have not attempted to conform to acceptedstandards in the matter of proportion of parts considered, but it willbe understood that they may be greatly varied as circumstances mayrequire.

Having thus described my invention, what I claim as new and desire? tosecure by Letters Patent, is:

1. In a structure of the class described, the combination of a barprovided with a shank of non-circular cross section and having a. collarat its inner end, a casing comprising a pair. of hemi-spherical sectionsremovably mounted on said shank, said casing sections being providedwith internal annularly disposed lugs, a plurality of disklike weightshaving peripheral recesses en gageable with said lugs by a rotativemovement of the weights with the casing members. said weights beingengageable with the said shank whereby they are non-rotatably supported,and a nut threaded upon said shank clamping said casing againt saidcollar.

2. In a structure of the class described, the combination of abarprovided with a shank of non-circular cross'section, a casing comprisinga pair of hemispherical sections removably mounted on said shank, saidcasing sections being provided with internal annularly disposed lugs, aplurality of disklilze weights having peripheral recesses engageablewith said lugs by a rotative movement of the weights with the casingmembers, said weights being engageable with the said shank whereby theyare non-rotatably supported. 4

3. In a structure of the class described,the combination of a hand bar,a casing comprising a pair of hemispherical se'ctionsremovably mountedon said bar,: said casing sections being provided with internalannularly disposed lugs, a plurality of disk-like weights havingperipheral recesses engageable with said lugs by a relative rotativemovement of the weights and the casing members, and means for removablyand non-rot'atably securing said parts upon said bar.

in a structure of the class described, the combination with a bar, aspherical casing com. arising complementary sections, said casing beingprovided with internal annu larly disposed lugs, a plurality of weightshaving peripheral recesses adapted to be enggaged with said lugs byrelative rotative movement, said weights being removably engaged withsaid ban and non-rotatably supported thereby, and means for removablysecuring said casing members with the weights therein upon said bar.

In a structure of the class described, the combination with a bar, aspherical casing comprising complementary sections, said casing beingprovided with internal lugs, a plurality of" weights adapted to beengaged with said lugs by relative rotative move ment, said weightsbeing non-rotatably supported by said bar, and means for securing saidcasing members with the weights therein upon said bar.

6. .In astructure of the class: described, the combinationwith a bar, asectional casing provided with internal lugs, a plurality of weightsadapted to beengaged with said lugs by relative rotative movement, saidweights being removably engaged with said bar, and nonrotatablysupported thereby, and means for removably securing said casing with theweights therein upon said bar.

7. In a structure of the class described, the combination with. a bar, asectional casing provided with internal lugs, a plurality of weightsadapted to be engaged with said lugs by relative rota-tive movement,said weights being non-rotatably supported on said bar.

In witness whereof, I have hereunto set my hand and seal.

JOHN P. soHuUR. a s]

